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A160708 as a simple table

na(n)
11
21
31
43
51
63
718
83
93
1018
11192
1218
139
1418
15192
163472
17192
1854
1954
20192
213472
22104964
233472
24576
25324
26576
273472
28104964
295606272
30104964
3110416
323456
333456
3410416
35104964
365306272

[1,1,1,3,1,3,18,3,3,18,192,18,9,18,192,3472,192,
 54,54,192,3472,104964,3472,576,324,576,3472,
 104964,5606272,104964,10416,3456,3456,10416,
 104964,5306272]